Mesenteric massive gas caused by an infected abdominal aortic aneurysm.

A 79-year-old woman with hypertension and diabetes mellitus was transferred from a local hospital to our emergency room because of abdominal aortic aneurysm. Lower abdominal pain had been present for 3 weeks previously. On admission, enhanced computed tomography (CT) showed abdominal aortic aneurysm with a maximum diameter of 59 mm inferior to the renal artery and periaortic massive gas (Figure 1). White blood cell counts and C-reactive peptide were elevated (17 600/μL and 23.8 mg/dL). We suspected infective abdominal aortic aneurysm and administered intravenous antibiotic. Figure 1. Computed tomography showed aortic aneurysm with a maximum diameter of 59 mm inferior to the renal …